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Re: [Xen-devel] EFER in HVM guests


  • To: Jan Beulich <jbeulich@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxxxxxxxx>
  • Date: Wed, 29 Nov 2006 13:09:45 +0000
  • Delivery-date: Wed, 29 Nov 2006 05:09:52 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AccTt6O34f2/wn+qEducNwAX8io7RQ==
  • Thread-topic: [Xen-devel] EFER in HVM guests

On 29/11/06 13:07, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> Is it intentional that
> - under SVM, 32-bit guests can freely set EFER.LME
> - under VMX, 32-bit guests can't access EFER at all?
> 
> Thanks, Jan

I'm sure any differences are unintentional. There is obviously scope for
making much of the MSR and CPUID code non-vmx/svm specific.

I assume that this particular difference doesn't really matter?

 -- Keir


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